<?php

//
// Open Web Analytics - An Open Source Web Analytics Framework
//
// Copyright 2006 Peter Adams. All rights reserved.
//
// Licensed under GPL v2.0 http://www.gnu.org/copyleft/gpl.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// $Id$
//

if ( ! class_exists( 'owa_observer' ) ) {
	require_once( OWA_BASE_DIR.'owa_observer.php' );
}

/**
 * OWA Document Event handlers
 * 
 * @author      Peter Adams <peter@openwebanalytics.com>
 * @copyright   Copyright &copy; 2006 Peter Adams <peter@openwebanalytics.com>
 * @license     http://www.gnu.org/copyleft/gpl.html GPL v2.0
 * @category    owa
 * @package     owa
 * @version		$Revision$	      
 * @since		owa 1.0.0
 */

class owa_documentHandlers extends owa_observer {
    	
    /**
     * Notify Event Handler
     *
     * @param 	unknown_type $event
     * @access 	public
     */
    function notify($event) {
		
		if ( $event->get( 'document_id' ) || $event->get( 'page_url' ) ) {
		
			// create entity
			$d = owa_coreAPI::entityFactory( 'base.document' );
			
			// get document id from event
			$id = $event->get( 'document_id' );
			
			// if no document_id present attempt to make one from the page_url property
			if ( ! $id ) {
				
				$page_url = $event->get( 'page_url' );
				
				if ( $page_url ) {
			
					$id = $d->generateId( $page_url );
				} else {
			
					owa_coreAPI::debug( 'Not persisting Document, no page_url or document_id event property found.' );
			
					return OWA_EHS_EVENT_HANDLED;
				}
			}
			
			$d->load( $id );
			
			if ( ! $d->wasPersisted() ) {
				
				$d->setProperties( $event->getProperties() );
			
				$d->set( 'url', $event->get( 'page_url' ) );
			
				$d->set( 'uri', $event->get( 'page_uri' ) );
			
				$d->set( 'id', $id ); 
			
				$ret = $d->create();
				
				if ( $ret ) {
			
					return OWA_EHS_EVENT_HANDLED;
			
				} else {
			
					return OWA_EHS_EVENT_FAILED;
				}
				
			} else {
			
				owa_coreAPI::debug('Not logging Document, already exists');
				return OWA_EHS_EVENT_HANDLED;
			}
			
		} else {
			
			owa_coreAPI::notice('Not persisting Document dimension. document id or page url are missing from event.');
			
			return OWA_EHS_EVENT_HANDLED;
		}   	
    }
}

?>